Latest Paul J. Crutzen Stories

Anthropocene Continues To Instigate Scientific Debate
2012-11-01 13:07:36

Geological Society of America GSA Annual Meeting Technical Session: "Geomorphology of the Anthropocene" How have humans influenced Earth? Can geoscientists measure when human impacts began overtaking those of Earth's other inhabitants and that of the natural Earth system? Responding to increasing scientific recognition that humans have become the foremost agent of change at Earth's surface, organizers of this GSA technical session have brought together speakers and poster presentations...

Mysteries Of Ozone Depletion Continue 25 Years Later
2011-08-30 09:55:23

  Even after many decades of studying ozone and its loss from our atmosphere miles above the Earth, plenty of mysteries and surprises remain, including an unexpected loss of ozone over the Arctic this past winter, an authority on the topic told attendees of the 242nd National Meeting & Exposition of the American Chemical Society (ACS) on Monday. She also discussed chemistry and climate change, including some proposed ideas to "geoengineer" the Earth's climate to slow down or...

2011-05-09 12:51:10

Pontifical Academy of Sciences working group of leading scientists to present report to Pope Benedict XVI Scripps Institution of Oceanography / University of California, San Diego A panel of some of the world's leading climate and glacier scientists co-chaired by a Scripps Institution of Oceanography, UC San Diego researcher issued a report today commissioned by the Vatican's Pontifical Academy of Sciences citing the moral imperative before society to properly address climate change. The...

2011-02-02 22:26:36

Human influence on the landscape, global warming, sea level rise, ocean acidification and biodiversity are highlighted in a new set of studies led by University of Leicester researchers.How this influence will be reflected in the distinctive geological record forms the basis of the studies published in Philosophical Transactions of the Royal Society A.Jan Zalasiewicz and Mark Williams from the University of Leicester Department of Geology led the production of the studies into the...

2010-04-14 13:13:04

In just two centuries, humans have wrought such vast and unprecedented changes to our world that we actually might be ushering in a new geological time period that could alter the planet for millions of years, according to a group of prominent scientists that includes a Nobel Laureate. They say the dawning of this new epoch could lead to the sixth largest mass extinction in the Earth's history. Their commentary appears in ACS' bi-weekly journal Environmental Science & Technology. Jan...

2010-03-27 11:21:23

Researchers show how world has changed Geologists from the University of Leicester are among four scientists- including a Nobel prize-winner "“ who suggest that the Earth has entered a new age of geological time. The Age of Aquarius? Not quite - It's the Anthropocene Epoch, say the scientists writing in the journal Environmental Science & Technology. (web issue March 29; print issue April 1) And they add that the dawning of this new epoch may include the sixth largest mass...

2009-04-08 13:40:00

President Barack Obama's science and technology director told the Associated Press on Wednesday that the controversial use of geoengineering needs to be considered an option for combating global climate change. "It's got to be looked at," said Holdren in his first interview since being confirmed. "We don't have the luxury of taking any approach off the table." Geoengineering involves manipulation of the environment on a large scale using methods such as fertilizing the Earth's oceans with...

2008-10-07 15:40:11

A Nobel Prize winning scientist said on Tuesday that the current lagging economy could provide Earth with a much-needed break from climate change-inducing emissions of carbon dioxide. Atmospheric scientist Paul J Crutzen, known for discussing the possibility of blitzing the stratosphere with sulfur particles to cool the earth, said a global economic slowdown could help slow growth of carbon dioxide emissions. Furthermore, although the global economic turmoil may also divert focus from...

2008-08-12 03:00:25

By Thomas, Wendy Marie In the 1970s, Paul J. Crutzen investigated the role of nitrogen oxides (NOx) on stratospheric ozone chemistry. A decade later, two other leading scientists in our field, Mario Molina and Rowland Sherwood, began investigating the potential depleting effect of chlorine, a parcel of chlorofluorocarbon (CFC) chains, on stratospheric ozone. In another 10 years, all three pioneers would hold the Nobel Prize in chemistry for their groundbreaking scientific investigations...

Word of the Day
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.